First "breakup"

First off, find something else to do, maybe learn something new or such....
This isn't worth wasting your time over for this is only an experience that is unpleasant. (Although easier said than done) there is no point in continously idling in your state of doldrums. After you get over your slump, if it were my situation, I wouldn't rather try to ignite another relationship but rather mend it to which you are mutual friends. This would possibly ameliorate any animosity regarding this. It isn't as if others haven't experienced the same situation as yourself. But, what often helps is mending the friendship...don't think about starting another.

Regarding the stuff in your room, err if it bothers you that much than just put it in your closet or such in which it won't be a distraction to your time of recovery. It is just the concept of "Time" that would be most efficient; you will get over it.

Jam it back in, in the dark.